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Upper bounds for approximation of continuous-time dynamics using delayed outputs and feedforward neural networks

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3 Author(s)
Lavretsky, E. ; Phantom Works, Boeing Co., Huntington Beach, CA, USA ; Hovakimyan, N. ; Calise, A.J.

The problem of approximation of unknown dynamics of a continuous-time observable nonlinear system is considered using a feedforward neural network, operating over delayed sampled outputs of the system. Error bounds are derived that explicitly depend upon the sampling time interval and network architecture. The main result of this note broadens the class of nonlinear dynamical systems for which adaptive output feedback control and state estimation problems are solvable.

Published in:

Automatic Control, IEEE Transactions on  (Volume:48 ,  Issue: 9 )